It measures excessphase of voltage current by using digital circuit, Based on the reactive compensation theorem, the software hardware of the controller is deigned.
该控制器采用数字检测电路来获取电网电压与电流的相位差,从无功补偿的原理出发,设计控制器的软硬件。
2
The height and the excessphase variations of the occultation caused by water vapor and the temperature variety in the atmosphere boundary layer are studied in details.
详细研究了大气边界层水汽和温度变化对掩星观测高度、相位时延的影响;
3
It measures excessphase of voltage and current by using digital circuit, Based on the reactive compensation theorem, the software and hardware of the controller is deigned.